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Reefer Fuel Cost Calculator
Calculate refrigeration unit fuel cost for temperature-controlled shipments. Estimate reefer fuel consumption based on run hours, consumption rate, and fuel price.
hrs
gal/hr
/gal
miles
Reefer Fuel Cost / Trip⧉
$229.50
54.0 gallons at $4.25/gal
Adjusted Burn Rate⧉
0.900 gal/hr
Base 0.9 gal/hr x cold temp multiplier
Cost per Mile (reefer)⧉
$0.15
Reefer fuel only, excludes tractor
Cost per Run Hour⧉
$3.83
60 hrs of reefer operation
Monthly Fuel Cost⧉
$1,836.00
432.00 gal across 8 loads
Annual Fuel Cost⧉
$22,032.00
~4.8 tons CO2/month
Cost per Load⧉
$229.50
Reefer fuel allocation per shipment
Reefer vs Tractor Fuel Split
Reefer 19%
Tractor 81%
Reefer: $229.50Tractor (est): $980.77Combined: $1,210.27
Fuel Price Sensitivity
| Diesel Price | Trip Cost | Monthly Cost | Annual Cost | vs Current |
|---|---|---|---|---|
| $3.00/gal | $162.00 | $1,296.00 | $15,552.00 | -$6,480.00 |
| $3.50/gal | $189.00 | $1,512.00 | $18,144.00 | -$3,888.00 |
| $4.00/gal | $216.00 | $1,728.00 | $20,736.00 | -$1,296.00 |
| $4.25/gal (current) | $229.50 | $1,836.00 | $22,032.00 | - |
| $4.50/gal | $243.00 | $1,944.00 | $23,328.00 | +$1,296.00 |
| $5.00/gal | $270.00 | $2,160.00 | $25,920.00 | +$3,888.00 |
| $5.50/gal | $297.00 | $2,376.00 | $28,512.00 | +$6,480.00 |
| $6.00/gal | $324.00 | $2,592.00 | $31,104.00 | +$9,072.00 |
Consumption by Temperature Zone
| Temp Zone | Range | Multiplier | Typical Rate (gal/hr) | Est Trip Cost |
|---|---|---|---|---|
| Frozen | -10 to 0 F | 1.3x | 1.0-1.6 | $298.35 |
| Cold | 28-38 F | 1.0x | 0.7-1.2 | $229.50 |
| Cool | 38-55 F | 0.75x | 0.5-0.9 | $172.13 |
| Climate Control | 55-75 F | 0.5x | 0.3-0.6 | $114.75 |
Planning notes, formulas, and examples
About the Reefer Fuel Cost Calculator
Refrigerated trailers (reefers) use a separate diesel-powered transport refrigeration unit (TRU) to maintain cargo temperature. This unit consumes 0.5-1.5 gallons per hour depending on ambient temperature, set point, insulation condition, and load characteristics. On a 3-day cross-country haul, reefer fuel can add $200-$600 to the transportation cost.
Reefer fuel is a significant and often underestimated cost in cold chain logistics. The unit runs continuously — during transit, at rest stops, while loading/unloading, and during waiting time at docks. Hot ambient conditions, frequent door openings, and heavy pre-cooling requirements all increase consumption.
This calculator estimates reefer fuel cost based on run hours and consumption rate. Use it to accurately price temperature-controlled shipments and identify opportunities to reduce reefer fuel expense.
Use the result to compare operating scenarios, pressure-test assumptions, and rerun the model when volumes, rates, or service targets change.
When This Page Helps
Reefer fuel adds 8-15% to the total transportation cost for temperature-controlled loads. Carriers who don't account for reefer fuel in their pricing lose money on every cold chain shipment. This calculator ensures accurate cold chain cost estimates.
How to Use the Inputs
- Enter reefer run hours for the trip.
- Enter fuel consumption rate (gallons per hour).
- Enter current diesel fuel price.
- View total reefer fuel cost.
- Add to line-haul cost for total shipment cost.
- Compare costs for different temperature set points.
Formula used
Reefer Fuel Cost = Run Hours × Consumption Rate (gal/hr) × Fuel Price ($/gal)
Total Gallons = Run Hours × Consumption Rate
Cost per Mile = Reefer Fuel Cost / Trip MilesExample Calculation
Result: Reefer Fuel Cost = $229.50
Total fuel: 60 hrs × 0.9 gal/hr = 54 gallons. Cost: 54 × $4.25 = $229.50. On a 1,500-mile trip, that adds $0.153/mile in reefer fuel alone on top of the standard tractor fuel cost.
Tips & Best Practices
- Pre-cool the trailer before loading to reduce initial temperature pull-down fuel use.
- Ensure door seals are in good condition — air leaks increase fuel consumption 10-20%.
- Use multi-temperature units efficiently — maintaining two zones uses 30% more fuel.
- Monitor reefer fuel consumption trends — sudden increases indicate maintenance issues.
- Consider the fuel surcharge for reefer separately from tractor fuel surcharges.
- Electric standby (plug-in at the dock) saves $3-8/hour vs. running the diesel TRU.
Reefer Fuel vs. Tractor Fuel
Tractor fuel and reefer fuel are separate costs. A typical tractor uses 6 MPG (about $0.70/mile at $4.25/gal). The reefer adds $0.10-$0.25/mile on top. Combined fuel cost for a reefer load is $0.80-$0.95/mile — 15-35% more than a dry van. This differential must be reflected in reefer rates.
Electric and Alternative Reefer Technology
Electric transport refrigeration units (eTRUs) eliminate diesel consumption during transit. Hybrid units use electric standby at docks and diesel on the road. These technologies cost 20-40% more upfront but can save 30-50% in reefer fuel annually, with a 3-5 year payback period.
Cold Chain Fuel Cost Optimization
The biggest reefer fuel savings come from: reducing dwell time (the trailer sitting with the reefer running while waiting for a dock), using electric standby at facilities that offer it, maintaining equipment to OEM specifications, and routing to minimize time in extreme ambient temperatures.
Sources & Methodology
Last updated:
Frequently Asked Questions
A typical transport refrigeration unit consumes 0.5-1.5 gallons per hour. In moderate conditions with a well-insulated trailer, 0.6-0.8 gal/hr is typical. In hot ambient conditions (90°F+) with a frozen set point, consumption can reach 1.2-1.5 gal/hr.
Yes. Colder set points (frozen at 0°F) use 20-40% more fuel than refrigerated set points (34°F) because the compressor works harder to maintain the larger temperature differential. Multi-temp units running frozen and fresh simultaneously use the most fuel.
Most reefer units have a 50-75 gallon fuel tank. At 0.8 gal/hr, a 60-gallon tank lasts about 75 hours (3+ days). For longer hauls, factor in refueling stops. Some carriers use a "reefer fuel card" to track this cost separately.
Yes. Maintain door seals, pre-cool before loading, reduce idle time at docks, keep condenser coils clean, use electric standby when available, and ensure the insulation is in good condition. New reefer units are 15-25% more fuel-efficient than older models.
Not always. Some carriers include reefer fuel in their per-mile rate. Others charge a separate reefer surcharge ($100-$500 per shipment) or a per-mile reefer fuel add-on ($0.10-$0.25/mile). Clarify with the carrier before booking.
Every 10°F increase in ambient temperature increases reefer fuel consumption by approximately 10-15%. A summer haul in the southern US may consume 40-60% more reefer fuel than the same haul in winter. Seasonal fuel cost adjustments should reflect this.
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